Oil burner



C. STEFFEL', 552.; F. B. SANDERS, ADMINISTRATOR 01L BURNER,

APPLICATION man JUNE 2 ;;1920.

1,43,986, Patentefi 5311.. 17,

' UNITED- STATES" AT NT OFFICE,

ciaannns s'rnrrEL,

I 1 ortnumrna To all whom it co'nccwt:

Be it known that 1, CHARLES STEFFEL, a

citizen of the United States, residing at Granite City, Illinois, have invented a certain new and useful Improvement in Oil Burners, of which the following is a full, clear, and exact description, such as will enable others skilled in the artto which it appertains to make and use the same.

This invention relates to oil burners, and

has for its main object to provide an oil burner of novel construction that will split up or divide into small particles the large my invention.

globules of oil, and thus effect a 'great saving in the quantity of oil used, due to the fact that all of the oil supplied. to the burner will be burned or utilized.

Other objects and desirable features of my invention will be hereinafter pointed out. Y f Figure 1 is a side elevational view of an 011 burner constructed in accordance with Figure-2 is a longitudinal of said burner. 4 j

Figure 3 is a front end elevational. view sectional view of the burner.

\ Figure 4 is a rear end elevational view of oil and steam pipes removed; and f Figure 5 is a cross sectional view of theburner, taken on the, line 55 'of Figure 2, looking in the direction indicated by the arrows.

Referring to thmdrawin s which illus trate the preferred form 0 my invention,

A designates a member provided with: a mixing ,chamber B to. which oil and an atomizing medium such as steam or compressed air'are supplied through a pipe 1 and a pi e1 that is arranged inside of the I pipe referably, oil is supplied through the' plpe 1 and steamor compressed air through the ipe'lfi The mixing chamber;

B is preferab y formed by twotransversel 1 disposed bores or spaces 2 in the member arranged in par lel relation, as shown in Figures 2 and other by a narrower contracted passe ewa 3. Said mixing chamber'is provi ed wit a discharge opening, preferably in the form of a narrow, elongated slot 4, that leads from the upper end of said mixi chamber and terminatesin' the front en of the member A, ands'aid-mixing chamber and connected with each Specification of Letters Patent. Patented Jan. 17, 1922.v Application 111m June 24, 1920. Serial No. 391,452.

form of my invention, as herein shown, oil.

is'supplied to the mixing chamber through an opening 5 arranged at the lower end of said chamber, and steamor compressed air Jr- RANITE C-ITLY, rumors; 'rmx 3. serum-as annmrsrn'ar I roe or sun CHARLES srarrnr, nncmsnn.

is supplied to said chamber through anopening 6 located preferably at a point just below the passageway 3 that connects the two spaces or portions 2 of the mixing chamber with each other.

In order that the large globules. of oil which enter the mixing chamber B will be split up or divided into small particles, I have provided said mixing chamber with numerous sharp projections or corners 7 against which the globules of oil strike in passing through the mixing chamber. I

prefer to equip said mixing chamber with a projection 7 formed by the upper edge of the oil inlet opening 5, a plurality of pro jections 7 arranged at opposite sides of'the contracted passageway 3 between the two portions'2 of the mixing chamber and a projection 7 formed by the lower edge of the discharge opening 4 which leads from the upper end of the mixing chamber,

When the burner is in use the oil that is supplied to the mixing chamber B through the inlet opening 5 will be atomized by the steam or compressed air that is supplied to the mixing chamber through the opening 6,

and as the mixing chamber is provided with numerous sharp corners or projections 7 which the lobules of oil encounter in passing throug the mixing chamber, the large globules-of'oil will be broken up sufliciently to insure all of the oil being burned, thereby eifecting a great saving in the quantity of fuel used, due to the fact that all of the fuel is burned. In fact, a burner of the conburn very heavy oil like tar oil, pitch tar and other heavy fluids and liquids which cannot be, burned successfully in the oil burners now in general commercial use.

-struction above described will atomize and I Means is also provided for causing the oil to swirl orfiow in a spiral pajth just before it enters the mixing chamber B. In the embodiment of my invention herein illustrated said means is formed by spiral pipe 1 and provided with a passageway 9 ribs 8 on a plug :0 arranged ins de 'of the p end of the nozzle is flared and is so prolet 5 can portioned that the front end "of the spirally ggooved or fluted portion of the plug C will" held spaced away from the' member. A far enough to rmit the oil to pass down wardly to the 011 inlet 5 at the lower side of the mixin chamber. If desired, the oil inprovided at its receiving end with a mouth 5" having "an upwardly-inclined bottom wall, as shown in Figures 2 and 4, so as to direct the opening 5. a q

My Improved burner is, intended to be used in the same manner as the oil burners now in general use. When used in an open hearth furnace the pipe 1 is made long oil into the inlet enough to project into.the furnace a conv of usm 1s necessa tively great area.

Having thus described my invention,' what siderable distance, and said pipe 1 and the steam or compressed air supply pipe 1 that is arranged inside of same are connec ordinary T pipe fittings to the oil and steam supply pipes, thusl overcoming, the necessity special castings for connecting the pipeso the burner with the supply pipes, as

thermore, as the steam or air used to atomize the oil is supplied to the mixing chamber throu h \a pipel which may extenda con-- sidera le distance into the furnace, said steam or air will be superheated while it is passing from thesupp y 'ipe to the point where it mixes with the oi While it is not essential that the discharge opening 4;. leading from the mixing chamber to be, in the storm of a narrow, elongated slotl, still I pre-' vfer to makethe discharge opening in this form when the burner isdesigned for usewith an o n hearth furnace, on account of the fact t at such-a constructionrproduces a wide, flat flame that spreads out over a rela-- with the oil burners now gen-- erally use in open hearth furnaces. Fur- I claimas new and desire-to secureby Letters Patent, is: a

1. An oil burner, comprising a member mounted on the'end of an oil pipe and provided with a mixing chamber composed of two separate and distinct portions connected witheach other by a contracted passageway, said member having a dischargeopening in the front end of same that communicates with one portion of the mixing chamber, an inlet leading from' the other portion of said mixing chamber to the interior of the oil pipe on which said memberis mounted, a .device arranged inside of the oil pipe and combined with said member ingsuch a way that it introduces an atomizing medium into said mixing chamber intermediate the two portionsof said chamber, sharp pointed corners or projections in the passageway in said member throu h whichthe oil; travels for effectively breaking up the large globules of oil, and spiral ooves -olr ribs on the exterior of. said devlce for impartin a swirl.- ing action to the oil that is supplie through the pipe on which saidmember is mounted.

2. An oil burner, comprising a member that is mounted on the end of an oil pipe and provided with a mixingchamber formed by two transversely-disposed .bores in said member arranged one abovethe other and connectedtogether by a contracted passageway, a dis'chargeopening in the front end wall of said member consisting of a narrow slot that leads from the upper bore of said mixing chamber, an inlet leading from the lowerbore of saidmixing chamber to the interior of said oil pipe on which said member is mounted, a devicein the oil ipe mounted on the end of a pipe through w ich an atomizing medium is supplied and provided at its front end with a nozzle that .fits in an opening in said member, said nozzle having a passageway therein through 'which the atomizing medium is admitted to the mixing chamber, and spiral grooves or ribs on the exterior-of said device forimburner.

supplied to the CHARLES STEFFEL. 

